Orchard-heater.



T. H. STEWART.

ORCHARD HEATER.

APPLICATION FILED M10. zo. 19m

Patented Nov. 14, 1911.

vTo aZZ whom t may concern.'

" Be 1t known that I, THOMAS H. STEWART,

UNITED stagg THOMAS H. STEWART, OF ATLANTA, GEORGA, ASSIGNOB, TO AMERICAN CAN COMPANY,

F NEW YORK. N. Y., A. CORPORATION OF NEW JERSEY.

ORCHARD-HEATER.

a citizenl of the United States, residing at Atlanta., in the county of Fulton and State of Georgia, have'invented a new and useful Improvement in Orchard-Heaters, of which f `the 'following is a specification.

My invention relates to improvements in orchard heaters.

The object of my invention is to provide an orchard heater of ai strong, simple, eflicient and `durable construction, composed of few parts, adapted to be cheaply manufac.-

Atured and furnished at small cost, the part-s of which can be easily and quickly assembled, and which may be readily filled wit-h fuel and lighted.

My invention consists in an orchard heater embodying in coperative combination a flaring or dish shaped, one piece, drawn sheet metal pot or fuel container, having an annular, outwardly projecting flange at its upper end; a square or rectangular cover plate having rounded corners provided with flanges engaging the external flange at the upper end of the container, and furnished .with a central opening to receive a flue,

member, the straight edges of the cover plat-e leavingvopenings or air passages between the cover plate and the upper end of the fuel container; an inverted, dish shaped, one piece hood having acentral opening in its integral fiat or disk portion and provided with wires secured thereto and extending across its lower end on the inside to engage the cover plate of the fuel container and support the hood with its flaring wall out of contact with the fuel container, and thus leave a fre-e space for passage of air between the rim or enlarged end of the inverted hood and the rim of the fuel container; and a cylindrical flue or chimney member furnished with openn ings `or perforations for passage of air Ithrough the same' and t-ting within the cen- ,.tral opening in the cover plate and project- Specification of Letters Patent.

yApplication led December 20, 1910.

Patented Nov. 14, 1911.

Serial No. 598,382.

herein shown and described and more particularly specified in the claims.

In the accompanying drawing forming a part of this specification, Figure 1 is a perspective view of an orchard heater embodying my invention, the cover plate at the upper end of the hood and flue being removed. Fig. 2 is a central, vertical section on line 2-2 of Fig. 1. Fig. 3 is a horizontal section on line 3 3 of Fig. 2. Fig. 4 is a vertical section on line et-4 of Fig. 3.

In the drawing, 1 represents a dish shaped sheet metal fuel container drawn into shape from one seamless piece and having an eX- ternally projecting fiat annular flange 2 at the upper end of its flaring frusto conical wall 3. Secured to the upper end of the con# tainer 1 is a flat cover plate l of rectangular shape and having rounded truncated corners 5 furnished with flanges 6 crimped under the fiange 2 of the container to secure' the cover plate rigidly-thereto. At the vside edges 7 of the cover plate. openings 8 are formed beneath the cover plate.

9 is a fine or chimney consisting of a cylindrical coiled orcurved rectangular` piece of sheet steel or iron, the edges 10, 11 of which loosely overlap, and .which fits within the large central opening 28 in the cover plate, the spring of the sheet met-al of the flue causing it to outwardly expand and snugly fit the opening in the cover plate. The

lower end of the flue 9 rests upon the inte` gral bottom ofthe container 1, and the flue is open at both ends and provided with a series of holes or openings 12 extending around its circumference and from end to end for passage of air therethrough. As the cover plate 4: is rigidly secured to the container 1 and as it engages the spring cylindrically coiled loose flue sheet at its periphery, while the lower end of the flue rests upon the bottom of the container, the flue is thus held in an upright position by t-he cover plate 4 and prevented from tilting, so that the flue itself serves in turn as a centering device to retain the upper end of theinverted dishpan shaped hood 13 in position and prevent the hood from tilting, as the upper end of the` flue project-s through the opening 14 in the disk portion 15 of the hood.

"frusto conicalxwall 16 may surround, without touching, the-annular flange or rim 2 of the vcontainer 1 and leave an open space 17 therebetween for admission of air ito the container and into the hood. The inverted dish pan shaped hood is made in one piece and is provided with a stiffening rim or flange 18 at its lower end, terminatingin a curl 19. The inverted dish shaped hood is provided on the inside of its 4fiaring wall near the lower end thereof with apair of wire stays or supports 20, which are formed preferably of heavy wire, and which rest upon the flat cover 'plate of the container and thus support the hood in position. The wire stays or supports 20 .are inserted through holes 21 in the iiaring Wall of the hood and havebent ends 22 to secure them 'rigidly in position.

The uppe-rend 23 of the -flue projects .through the-opening in the fiat'or disk portion 15 of the hood 13, but preferably only very slightly, so that this upper end of the Hue is substantially Hush with the upper 'face of the flat or disk portion, of the hood. This adapts the flat rectangular flue cover plate 24 to cover and protect from rain not only the opening .in the upper end of the flue, but also the openingr in the upper end of the hood, and also enables this cover plate 1 the hood and passes 'in part beneath the cover plate through the openings 8 between its side edges and the rim of the container and thence passes through the holes or perforations in the flue member into the flue chamber, combustion being confined or I 'chiefly confined to the surface of the oil inf sidethe flue. As the oil in the container 1s consumed, further holes in the fiue are exposed for passage of air therethrough.

r'Ihe air entering under the hood in. part passes into the flue through the holes therein above the cover plate, thus providing adequate draft and insuring al more perfect consumption of t-he fuel.

I claim :d

1. In an orchard heater, the combination with a one-piece sheet metal, dish pan shaped fuel container having an outwardly proJecting' flange at its upper end, of a rectangular cover plate having rounded corners provided with flanges securing it to the flange of the container, said container and top plate having air passages between the side edges of the top plate and the upper end of' the container, a perforated sheet metal flue open at. its upper end and forn ed of a cylindrically coiled sheetwith loose overlapping ends and fitting within the central opening of said cover plate, and a one piece inverted dish shaped sheet metal hood having. a central opening in its flat disk portion to receive the upper end ofv the flue, and provided with supporting stays ex`- tending across the interior of the hoodnear its lower end to engage said cover plate and support the hood with an open space for passage of air between the upper end of the container and the lower portion of the hood,` said opening in the hood forming an annular air passage between the hood and the upper endlof the fiue and said fiat disk portion of the hood'serving to defiect air inwardly over the upper end of the flue, substantially as specified.

2. In an orchard heater, the combination with a one-piece sheet metal dish pan shaped fuel container having an outwardly pro-- jecting flange at its upper end, of a rectangular cover plate having .rounded corners provided with flanges securing it to the flange of the container, said container and top plate having air passages between the side edges of the top plate and the upper' end of the container, a perforated sheet metal flue open at its upper end and formed. of a cylindrically'coiled sheet with loose overlapping ends and fitting within the cen-A tral opening of said cover plate, and a one piece inverted dish shaped sheet metal hood having a central opening in its flat dish portion to receive the upper end4 of the flue,

land provided with supporting stays extending across the interior of the hood near itsv lower end Itoengage said cover plate and support the hood with-an open space for passage of air between the upper end of the container and the lower portion of the hood, the flat. disk portion of the hood being 'substantially flush with the upper end of the flue to afford support: for a common cover plate. said opening in the hood forming an annular .air passage between t-he hood and the upper end of the fiue and said flat disk portionof the hood serving to deflect air inwardly over the upper end of the flue, and a common cover plate adaptedto cover both the opening in the hood and the upper end of the flue, substantially as specified.

3. In an orchard heater, the combination with a seamless sheet metal fuel container, of a seamless inverted dishpan shaped hood -having a central opening at its upper end,

a cover plate for the container having a central opening and supporting stays on the inside ofthe hood adapted to engage the cover plate and support the hood in spaced relation'to the upper end of the container.

cover plate and support the insane? and a perforated line open at its upper end and fitting wit-hin said opening in the cover plate and said opening in the hood, said hood having an annular' horizontally and in wardly projecting portion 'surrounding said central opening" therein and serving to deflect air inwardly over the upper end of the tine, substantially as specified.

4. ln an orchard heat-er, the combination with a one piece drawn sheet inetalfuel container having a flange at its upper end, of a cover plate having a central. opening and rounded corner portions provided with danges 'crimped under the flange of the container, an inverted dish pan shaped hood having an opening in its lupper end and provided' with stay wires extending across it on the inside in position to engage said relation to the container, expansible liuc open' at its upper end and litting within said opening in the cover plate, said hood having an annular horizont-ally Iandinward'ly projecting portion surrounding said central opening therein and serving to deflect air inwardly over the upper end of the flue, substantially as specied.

' jln an orchard heater, the combina'ion with a one piece dish pan shaped ,sheet metal fuel container, of a sheet metal inverted dish pan shaped hood of larger size than the container, andv provided with means for supporting it in spaced relation tothe container, said hood having a central opening at its upper end, and a perforated eXpansiblecylindrical'ilue open at its upper end and extending at its upperend vwithin the central opening of said hood, said hood having an annular horizontally and in- Wardly projecting portion surrounding said and aperforated vcentral opening therein and serving to defleet air inwardly over the upper end of the ue, substantially as speciiied.

6. ln an orchard heater, the combination with a. one piece dish pan shaped sheet metalv fuel container, oi" a sheet metal Vpan shaped hood of larger inverted dish size than the container, and provided with means for supporting it in spaced' relation to the conhood in spaced.

.cover plate, the upper tainer, said hood having a central opening at its Lipper end, a cover plate secured to said container `and having av central opening, and a perforated, expansible, cylindrical liuc open at its upper end and f rmed of a rectangular sheet coiled into cylinc rical forno with loosely overlapping ends, said hood having an annular horizontally and inwardly projecting portion surrounding said central opening therein and serving to deflect air inwardly over the upper end of the flue, substantially' as specified.

T. In an orchard heater, the combination with a fuel container, of a cover plate therefor having a central opening, a'hood having supporting stays extending across its interior near its lower end to support it in spaced relation to the container and adapted to engage the cover vplate of said container, and a removable open topped iue having perforated Walls and extending at its upper end within the central opening of said cover plate, said hood having an annular horizontally and" inwardly projecting portion surrounding said central opening therein and serving to deflect air inwardly over the upper end of the flue, substantially as specilied.

8. In an orchard heater, the combinationv of a fuel container, a cover plate secured to the upper edge of said container and formed with a central opening, air passages being fornied between the outer edge of the cover plate and the rim of the container, a hood provided with an inwardly project-ing flange at its upper end, air passages being formed between the lower en d of the hood and the upper end of the container and a perforated tlue itted into the 'central opening of the end of said' flue project-ing through the hood and spaced from the said inwardly projecting flange, the lower end vof said flue extendingintovthe fuel container below the normal fuel level thereof, f

THOlllAS H.v STEWART. `ill-Titnesses Enns-sr il. PHILIP,

C. FALL., 

